A question for Junlgers: How often does success not translate to wins?

I've been playing jungle a lot more because, i thought, i could focus on lanes where success was happening and create more wins. But in game after game 2 or 3 early, succesful ganks aren't turning into wins. In fact it's not even close.

I'm fine hearing that I'm the problem if thats the case, but in games where I'm not the jungle I see how a good junglers early ganks, or attention to all lanes prior to establishing who's good and who's not makes all the difference. So what is your experience? For the time being I'm going back to lanes.